2509251211 has 2 divisors, whose sum is σ = 2509251212. Its totient is φ = 2509251210.

The previous prime is 2509251139. The next prime is 2509251343. The reversal of 2509251211 is 1121529052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2509251211 - 2²⁵ = 2475696779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2509251211.

It is not a weakly prime, because it can be changed into another prime (2509252211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1254625605 + 1254625606.

It is an arithmetic number, because the mean of its divisors is an integer number (1254625606).

Almost surely, 2^2509251211 is an apocalyptic number.

2509251211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2509251211 is an equidigital number, since it uses as much as digits as its factorization.

2509251211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 2509251211 is about 50092.4266830825. The cubic root of 2509251211 is about 1358.8808575339.

The spelling of 2509251211 in words is "two billion, five hundred nine million, two hundred fifty-one thousand, two hundred eleven".